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obcs_save_uv_n.F
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obcs_save_uv_n.F
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#include "OBCS_OPTIONS.h"
CBOP
C !ROUTINE: OBCS_SAVE_UV_N
C !INTERFACE:
SUBROUTINE OBCS_SAVE_UV_N( bi, bj, iMin, iMax, jMin, jMax, kArg,
I uFld, vFld,
I myThid )
C !DESCRIPTION: \bv
C *==========================================================*
C | SUBROUTINE OBCS_SAVE_UV_N
C | Save normal velocities at the OB location to be used
C | in the next time step for Stevens boundary conditions
C *==========================================================*
C \ev
C !USES:
IMPLICIT NONE
C == Global variables ==
#include "SIZE.h"
#include "EEPARAMS.h"
#include "PARAMS.h"
#include "GRID.h"
#include "OBCS_PARAMS.h"
#include "OBCS_GRID.h"
#include "OBCS_FIELDS.h"
C !INPUT/OUTPUT PARAMETERS:
C == Routine Arguments ==
C bi, bj :: indices of current tile
C iMin,iMax :: array boundaries
C jMin,jMax ::
C kArg :: index of current level which OBC applies to
C or, if zero, apply to all levels
C uFld :: horizontal velocity field, 1rst component (zonal)
C vFld :: horizontal velocity field, 2nd component (meridional)
C myThid :: my Thread Id number
INTEGER bi, bj
INTEGER iMin, iMax
INTEGER jMin, jMax
INTEGER kArg
_RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
_RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
INTEGER myThid
CEOP
#ifdef ALLOW_OBCS_STEVENS
C !LOCAL VARIABLES:
C == Local variables ==
INTEGER k, kLo, kHi
INTEGER i, j
INTEGER Iobc, Jobc
C-- Save model velocity normal to OB for next time step.
IF ( kArg.EQ.0 ) THEN
kLo = 1
kHi = Nr
ELSE
kLo = kArg
kHi = kArg
ENDIF
#ifdef ALLOW_OBCS_NORTH
IF ( tileHasOBN(bi,bj) .AND. useStevensNorth ) THEN
C Northern boundary
DO i=iMin,iMax
Jobc = OB_Jn(i,bi,bj)
IF ( Jobc.NE.OB_indexNone ) THEN
DO k = kLo,kHi
OBNvStevens(i,k,bi,bj) = vFld(i,Jobc,k,bi,bj)
& *_maskS(i,Jobc,k,bi,bj)
ENDDO
ENDIF
ENDDO
ENDIF
#endif
#ifdef ALLOW_OBCS_SOUTH
IF ( tileHasOBS(bi,bj) .AND. useStevensSouth ) THEN
C Southern boundary
DO i=iMin,iMax
Jobc = OB_Js(i,bi,bj)
IF ( Jobc.NE.OB_indexNone ) THEN
DO k = kLo,kHi
OBSvStevens(i,k,bi,bj) = vFld(i,Jobc+1,k,bi,bj)
& *_maskS(i,Jobc+1,k,bi,bj)
ENDDO
ENDIF
ENDDO
ENDIF
#endif
#ifdef ALLOW_OBCS_EAST
IF ( tileHasOBE(bi,bj) .AND. useStevensEast ) THEN
C Eastern boundary
DO j=jMin,jMax
Iobc = OB_Ie(j,bi,bj)
IF ( Iobc.NE.OB_indexNone ) THEN
DO k = kLo,kHi
OBEuStevens(j,k,bi,bj) = uFld(Iobc,j,k,bi,bj)
& *_maskW(Iobc,j,k,bi,bj)
ENDDO
ENDIF
ENDDO
ENDIF
#endif
#ifdef ALLOW_OBCS_WEST
IF ( tileHasOBW(bi,bj) .AND. useStevensWest ) THEN
C Western boundary
DO j=jMin,jMax
Iobc = OB_Iw(j,bi,bj)
IF ( Iobc.NE.OB_indexNone ) THEN
DO k = kLo,kHi
OBWuStevens(j,k,bi,bj) = uFld(Iobc+1,j,k,bi,bj)
& *_maskW(Iobc+1,j,k,bi,bj)
ENDDO
ENDIF
ENDDO
ENDIF
#endif
#endif /* ALLOW_OBCS_STEVENS */
RETURN
END